Fulgurotherium is the name given to a genus of dinosaur from the Early Cretaceous. It lived in what is now Australia. It was a hypsilophodont, a primitive ornithopod. The type species, Fulgurotherium australe, was formalized by Huene in 1932, but the animal may be a chimera based on multiple species of ornithopods. Its name is an unusual example of a name in -therium used for an animal which is not a mammal.